S. Mahunka szerk.: Folia Entomologica Hungarica 49. (Budapest, 1988)

Diagnosis: The new species belongs to the incestus-group just created by TANASEVITCH et ESKOV (1987), but is well distinguishable from other congeners by the structure of both paracymbium and embolic division, as well as by the broadest scape among the members of this group. Certain resemblance of the epigyne of L. camtchadalicus sp.n. with that of the North American L. triramus Chamberlin et Ivie, 1947 (known from Alaska and Newfoundland - s. CHAMBERLIN et IVIE 1947; HACKMAN 1954) should be noted. However, the latter species has been known by females only, thus preventing further parallels to be drawn. But it seems likely that L. triramus also belongs in the incestusgroup. Lepthyphantes ateripes sp.n. (Figs 27-30) Holotype: 1 8 (ZMMU), USSR, Sakhalin Island, Aniva Distr., near Novoalexandrovsk, 18. VI. 1987; leg. A. BASARUKIN. - Paratypes: 4 p (ZMMU), same locality and date; leg. A. BASARUKIN. - 9 p (ZMMU), 4 p (HNHM), Sakhalin Island, Okha Distr., upper reaches of Tenga River, 14-25. V. 1987; leg. A.BASARUKIN. - 1 g (ZMMU), Sakhalin Island. 6 km E of Yuzhno-Sakhalinsk, Dolina Turistov, 18. X. 1985; leg. A. BASARUKIN. - 1 ô (ZMMU), Khabarovsk Area, Amur River Flow, near Ozerpakh, 13.11.1907; leg. V. SOLDATOV. Description. Male. Total length 2. 43. Carapace 1.00 long, 0.88 wide, orange-red. Chelicerae 0. 50 long. Femora also orange-red, other leg joints darkened. Chaetotaxy: Fel: 0-1-0-0; Til: 2-1-1-0, II: 2-0-1-0, III-IV: 2-0-0-0; Mtl-IV: 1-0-0-0. Tml - 0.21 (in the series: 0.18-0. 22). Leg I: 4. 76 long (1. 20 + 0. 30 + 1. 28 + 1. 20 + 0. 78), IV - 4. 34 (1.23 + 0.28 + 1.08 + 1. 10 + 0. 65). Palp (Figs. 27-28): Tibia with three large, regularly curved, dorso-retrolateral spines arranged in a longitudinal row. Paracymbium at hind margin with a tooth directed obliquely down. Lamella characteristica shorter, medially bent almost rectangularly. Terminal apophysis large, proximally broad and rounded, distally gradually attenuating, apex pointed. Abdomen 1. 35 long, 0. 80 wide, grey. Female. Total length 2.50. Carapace 1.00 long, 0. 78 wide. Chelicerae 0. 48 long. Tml - 0. 19 (in the series: 0. 18-0. 23). Leg I - 4. 36 long (1. 13 + 0. 30 + 1. 10 + 1. 08 + 0. 75), IV - 4. 04 (1. 18 + 0. 28 + 1. 00 + 1. 00 + 0. 58). Abdomen 1. 63 long, 0, 95 wide. Epigyne as in Figs. 29-30. Bodv and leg coloration, chaetotaxy as in male. Diagnosis: The new species is characterized by the orange-red carapace and femora which, in contrast to the darkened other leg joints, give the spider a very conspicuous appearance. Besides, the male palpal tibia has peculiar spines, and the shape of both lamella characteristica and epigyne is most characteristic. Lepthyphantes enormitus sp. n. (Figs 31-32) Holotype: 1 8 (ZMMU), USSR, Sakhalin Island, Okha Distr., upper reaches of Tenga River, 14-25. V. 1987; leg. A. BASARUKIN. Description. " Male. Total length 2. 18. Carapace 1,00 long, 0. 75 wide, brownish-grey, with narrow, grey, radial stripes. Chelicerae 0. 50 long. Legs pale brown. Chaetotaxy: Fel: 0-1-0-0; Til: 2-?-?-0 (probably: 2-1-1-0). II: 2-0-1-0, III-IV: 2-0-0-0; Mtl-IV: 1-0-0-0. Tml - 0.23. Leg I - 4. 32 long (1.08 + 0.28 + 1. 13 + 1. 08 + 0. 75), IV - 4. 29 long (1. 15 + 0. 23 + 1. 08 + 1. 10 + 0. 73). Metatarsi I ventro-laterally each with a row of adpressed hairs. Palp (Figs 31-32): Cymbium without proximal outgrowths. Paracymbium of peculiar shape. Lamella characteristica large, medially and apically with unequal, pointed processes. Embolus of unusual shape: its functional part thin, long, regularly curved; its basal part as a loose, membranized structure. Terminal apophysis absent (?). Abdomen: 1.23 long, 0.73 wide, dorsally grey, with a dark median stripe flanked by a row of spots connected to the axial stripe. Female unknown. Diagnosis: This species is characterized by the shape of both paracymbium and lamella characteristica, as well as by the structure of the embolic division. Lepthyphantes pepticus sp.n. (Figs 33-35) Holotype: 1 8 (ZMMU), eastern Mongolia, Golbyn-Gobi Desert, Taban-Ald-Khuduk Valley, from stomach of Gekko under Haloxylon, VII. 1985; leg. D. SEMENOV.